General chemistry

Cards (434)

  • Organic Chemistry
    Study of chemistry of carbon (C) & its derivatives
  • Biochemistry
    Study of molecules responsible for function of a Cell (Smallest functional Unit). (Biomolecules)
  • Some Biomolecules: DNA, Enzymes, Ribosome, Proteins, etc.
  • Most biomolecules are made up of organic compounds

    You need Organic chemistry to appreciate Biochemistry & other medical disciplines
  • Module/Lecturer Expectations

    • Lecture & Practical attendance
    • Student conduct
    • Participation in class
    • Course Assessments & Examination
  • Module Learning Outcomes
    • Use scientific notation & significant figures in calculations
    • Describe the structure of an atom
    • Describe the arrangement of elements in the periodic table & determine the electron configuration of the main group elements
    • Describe & explain the trends in the physical & chemical properties of elements
    • Define & explain the terms empirical formula & molecular formula & determine these for a given compound
    • Distinguish between ionic & covalent bonding
    • Draw Lewis structures & predict the shape & bond angles for molecules
    • Classify organic compounds into chemical groups
    • Identify the chemical & physical properties of organic compounds
    • Discuss the use of organic compounds in medicine
  • Module Content areas
    • General Chemistry: Matter & measurement, Atomic structure, Periodic table, Chemical bonding, Chemical formulas & nomenclature, Molecular shapes & orbital hybridisation, Resonance & resonance structures, Intermolecular forces vs. physical properties, Acids & bases
    • Organic Chemistry: Molecular representations & nomenclature, Organic molecules nomenclature, Alkanes & cycloalkanes, Alkenes & cycloalkenes, Alkynes, Arenes (Aromatic hydrocarbons), Halo-alkanes, ethers & amines, Alcohols & phenols, Carboxylic acids & carboxylic acid derivatives, Heterocyclic compounds, Stereochemistry, Introduction to organic reactions, Electrophilic addition of alkenes, Electrophilic addition of alkynes, Radical reactions of alkanes, Nucleophilic substitution & elimination of halo-alkanes
  • Typical lecture: 45mins
  • Organisation of sessions
    • Learning outcomes
    • Session content
    • Quiz
    • Methods of learning
  • Examination and Students' Progress
    • Continuous Assessments (60%): 1 x Midterm examination, 2 x Hand-in assignments, 1 x Class assessment, Practical sessions (quizzes & lab reports)
    • Final Examination (40%): Written examination (3h written paper)
  • Must attain an average CA mark of 50% to sit for Final Exam
  • Must attain an average mark of 50% to progress
  • Handling Student Queries
    • For Personal queries, students should contact the Lecturer or technologist/s concerned
    • For Class queries, the class representative should contact the lecturer or technologist/s on behalf of the class
    • If not assisted contact The Module Coordinator (Dr Anthony Ishola, 206 5037) Room C104, Life Sciences II Building
  • Organic Chemistry: difficult, challenging! "NOT memorisation course"
  • How to succeed?

    • look over the text before lecture
    • listen carefully to lectures
    • read the text (take notes)
    • do exercises (e.g. problems in text book)
    • review
  • Course information
    • Lecture Days: Tuesday 07:30-08:30 (Big lecture hall), Friday 08:30-11:30 (Big lecture hall)
    • Laboratory Practicals: Monday: 08:30-11:30 or Wednesday: 14:30-17:30 (depending on the group you are divided into)
    • Lecturer: Dr Anthony Ishola, E-mail: aishola@unam.na, Office: Office C104 (Life Sciences II Building), Office hours: 15:00-16:00 daily
    • Reference Materials: Handouts: Given per lecture, Text book: Bettelheim, F.A.; Brown, W.H.; Campbell, M.K. & Farrell, S.O. 2010. Introduction to General, Organic, and Biochemistry. 9th ed. Brooks/Cole
  • Chemistry
    The study of matter
  • Chemistry
    • Deals with the structure and properties of matter
    • Deals with transformations from one form of matter to another
  • Transformations
    • Chemical change
    • Physical change
  • Chemical change

    More commonly called a chemical reaction. Substances are used up (disappear) & others are formed to take their places.
  • Physical change
    Involves a change of physical state, e.g. melting of solids & boiling of liquids
  • Physical properties
    Density, melting point, physical state (liquid, solid, gas)
  • The universe consists of matter, energy and empty space
  • Matter
    Anything that has mass and takes up space
  • Chemistry is the science that deals with matter, i.e. structure and properties of matter and transformations from one form of matter to another
  • Modern medicine relies heavily on chemistry
  • It is important that future pharmacists and doctors have an understanding of chemistry
  • Exponential notation (Scientific notation)
    An easy way to handle small and large numbers
  • Exponential notation examples
    • 100 = 1 x 10^2
    • 1000 = 1 x 10^3
    • 1/100 = 1 x 10^-2
    • 1/1000 = 1 x 10^-3
  • Negative exponents
    Denote numbers less than 1
  • Exponential notation examples
    • 1234 = 1.234 x 10^3
    • 0.000456 = 4.56 x 10^-4
  • Converting numbers to exponential form
    1. Move the decimal point left for positive exponents
    2. Move the decimal point right for negative exponents
  • Significant figures can only be reported to the number of digits that can be read with the measuring device
  • Calculations using measurements with different numbers of significant figures should only report the final answer to the least number of significant figures
  • Measurement systems
    • English system
    • Metric system
    • International System of Units (SI)
  • Metric system units
    Metre (m), Litre (L), Gram (g), Second (s), Degrees Celsius (°C), Joule (J), Mole (mol)
  • SI units
    Metre (m), Kilogram (g), Second (s), Kelvin (K), Mole (mol)
  • Converting between metric/SI units
    Move the decimal point left or right by powers of 10
  • Volume
    The space occupied by a substance
  • Metric volume units
    Litre (L), Millilitre (mL)